ISSN:
1572-8935
Keywords:
Thermotropic
;
Thermally stimulated current
;
Co[poly(ethylene terephthalate-p-oxy-benzoate)]
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract A series of co[poly(ethylene terephthalate-p-oxybenzoate)] thermotropic copolyester with different compositions were prepared by the copolymerization of either poly(ethylene terephthalate) (PET) polymer or its oligomer with p-acetoxybenzoic acid. Thermally stimulated current (t.s.c.) method can be employed to evaluate the characterization of this type of liquid crystalline polymers (LCPs). The transition/relaxation of liquid crystalline polymers around its glass transition temperature have been investigated. When an electric field is applied for a period of time, it results in annealing of this copolymer. The t.s.c. method which seems particularly important to the complex multiphase structure of the liquid crystalline polymers can provide good information about the randomness of two moieties in the backbone of this copolymer.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01374551
